From d9f88365b5fdad9cf9e6b5e5721e06636ee44ae5 Mon Sep 17 00:00:00 2001
From: smallmodel <15067410+smallmodel@users.noreply.github.com>
Date: Sat, 19 Apr 2025 22:12:21 +0200
Subject: [PATCH] Set the overflow flag when the number of bits written reaches
 the maximum size

---
 code/qcommon/msg.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/code/qcommon/msg.c b/code/qcommon/msg.c
index 8a16673244..00c1f65bb5 100644
--- a/code/qcommon/msg.c
+++ b/code/qcommon/msg.c
@@ -147,7 +147,7 @@ void MSG_WriteBits( msg_t *msg, int value, int bits ) {
 		if ( bits&7 ) {
 			int nbits;
 			nbits = bits&7;
-			if ( msg->bit + nbits > msg->maxsize << 3 ) {
+			if ( msg->bit + nbits >= msg->maxsize << 3 ) {
 				msg->overflowed = qtrue;
 				return;
 			}
@@ -162,7 +162,7 @@ void MSG_WriteBits( msg_t *msg, int value, int bits ) {
 				Huff_offsetTransmit( &msgHuff.compressor, (value & 0xff), msg->data, &msg->bit, msg->maxsize << 3 );
 				value = (value >> 8);
 
-				if ( msg->bit > msg->maxsize << 3 ) {
+				if ( msg->bit >= msg->maxsize << 3 ) {
 					msg->overflowed = qtrue;
 					return;
 				}